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Old 12-23-2007, 01:55 PM   #5 (permalink)
Daox
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Join Date: Dec 2007
Location: Germantown, WI
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CM400E - '81 Honda CM400E
90 day: 58.68 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)
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Your 2nd assumption is correct. There is simply a bored hole in the aluminum block. The heater slides into the hole with some thermal grease around it. It is secured from sliding out by a little metal clip that hooks onto the block. I assume they went to this style when they went with aluminum blocks. I'm really glad I didn't have to mess around and knock out a freeze plug. Thats what I thought I was going to have to do.
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